Wireless-controlled current-distributer.



O. WIRTH.

WIRELESS CONTROLLED CURRENT DISTRIBUTER.

APPLICATION FILED AUG. 23, 1911.

Patented June 11, 1912.

UNITED STATES PATENT OFFICE,

CHRISTOPH WIRTH, 0F NUREMBERG, GERMANY, ASSIGNOR TO THE FIRM OF WIBTH,

BECK & KNAUSS, OF NUREMBER-G, GERMANY.

WIRELESS-CONTROLLED CURRENT-DISTRIBUTER.

Specification of Letters Patent.

Patented June 11, 1912.

Application filed August 23, 1911. Seriai No. 645,590.

To all whom it may concern:

Be it known that I, Cnnisrorn IVinrrr, a subject of the Empire of Germany, residing at 15 W'urzelbauerstrasse. Nurembm'g, Empire of Germany, have invented certain new and useful Improvements in 'ireless-Controlled Current-Distributers, of which the following is a specification.

The invention relates to electrical devices serving to render machines or the like operative or inoperative by means of electrical waves transmitted from a distant point in the manner described in U. S. Patent No.

9230588. In devices of this kind the spark in and the Wave oscillations thereby produced and which are propagated spec ally well in the metallic connections. might readily exert a prejudicial effect upon the coherer of the receiver. In order to obviate this defect, polarization cells or condei'isers have been employed for damping the oscillations. These means, however. only fulfil their purpose in the case of weak currents and fail completely when it is a question of currents of higher amperage or voltage.

The present invention has for its ob ect to remedy this defect which cannot be ehnn nated by inserting ordinary relays and this object is attained owing to the fact that the circuit conveying the electrical oscillations is located at the maximum distant-e from other circuits and is insulated itself and also relatively to other circuits in such a manner that the connections serv ng for transmission of mechanical movement are insulators.

An embodiment of a relay-like device of this kind is illustrated by way of example in Fig. 1 of the accompanying drawing. Fig. 2 illustrates a detail.

The arrangement shown in Fig. 1 illustrates the manner in which the receiver circuit is protected relatively to the circuit in fluencing the current distributor from prepr- (licial action of the electric waves produced by sparking.

On a base plate 1 is mounted an electromagnet 2. connectedwith the coherer 3. and adapted to act upon the armature r secured to the arm 4 which is pivotally supported upon the base plate 1. The pivotal point of this contact arm is connected on the one hand with one pole of the striker 5 of-the coherer while on the other hand it is connectcd with the winding of the electro-mag net (3. The other end of this winding passes over the conductor 7 and the battery 8 to the end of the armature 4. The current distributer 9 is located at a relatively considerable distance from the receiver approxi mately I meter but this interval is dependentupon the strength and tension of the current employed and must increase in pr portion with these magnitudes. In order t at, notwithstanding the considerable distance it may be possible to connect up the currentdistrihuter 9 in the proper manner from the coherer, the electro-magnet 10 of this current distributer is arranged in a circuit 11, 12 containing the source of current 11 which circuit can be closed by pressing a contactspring 13 connected with one pole of the magnet winding against the contact screw 14 connected with the other pole of the magnet winding! The contact spring 13 is connected with the armature 16 of the elect-ro-magnet by means of a traction member 15 of insulating material such as silk thread or the like in such a manner that by rotating the winding device or set screw 17 on which the traction memberis wound the tension of this membercan be regulated.

The operation of the apparatus described corresponds with that in Patent No. 930588. \Vhen electrical waves reach the coherer in the first place the electromagnet 2 is energized and its armature 4 closes the circuit serving to energize the magnet 6. As a result the armature 16 is attracted until it touches the contact screw 18 and thereby closes the circuit; of the striker magnet 5. The striking is thus retarded until the electromagnet G is sutiiciently saturated to become operative. The inovement'of the armature 16 is transmitted by the traction member 15 formed of insulating material and therefore prevents the transmission of electrical oscillationson to the cont-act spring 13 which on contact with the contact screw it closes the circuit 11, 14, 13, 12 of the cur rent distributing magnet 10 and thereby im-, parts a partiai rotation to the current distributor. In order to. insure a sufliciently long contact for producing the saturation of the current distributing magnet and in order to etl'ect the closing of'the striker circuit with certainty the arrangement illustrated in Fig. 2 is ZitlOPiQd. In this arrangement; the contact spring 13 is divided by a longitu 'contac being in the circuit of the electromagnet 5 of the decoherer. By thus closing the distributer operating circuit before the decoherer comesa'nto' action, the electromagnet 10 that controls the distributer. has ample time to come into full operation. This successive closing of the distributer controlling circuit and the decoherer operating circuit by the make and break device formed by the armature 16 and contact 18 is conducive to efiieient results and simplicity of construction.

What I claim and desire to secure by Letters Patent of the United States is 1. The combination of a coherer circuit including an electro-inagnet, a second circuit controlled by the electro-magnet and itself [containing an electro-magnet, a decoherer circuit including an armature operated by the second elect-ro-magnet, a distributer controlling circuit including a make and break device, a traction element connected withthe make and break device, and means on the armature for adjustably connecting the "traction element therewith whereby the armature controls the make and break device.

2. In a system of the class described, the combination of a distributer operating circuit including a movable and a fixed contact.

a circuit including a movable and a fixed contact, means for operating the last-mentioned contact,- a connecting element between the movable contacts and insulating one fromthe other, and a winding device carried by the second-mentioned movable contact for changing the length of the element and thereby the relation of the tw movable contacts. v

3. The combination of a coherer circuit, a decoherer circuit including an armature,

means controlled by the coherer circuit for operating the armature, a distributer operating circuit including a movable contact having a flexible ember, and an insulating connection betweenthe flexible member and armature whereby the armature operates the movable contact to close the distributer circuit before the armature closes the decoherer circuit.

4. The combination of a coherer circuit, a decoherer circuit includin an armature, means controlled by the col ierer circuit for operating the armature, a distributer oper; ating circuit including a movable contact having a flexible member, an insulating connection between the flexible member and armature whereby the armature operates the movable contact to close the distributer circuit before the armature closes the 'decohere? circuit, and anadjusting means on the an mature for attaching the said insulating connection therewith and for adjusting the relation of the said movable contact and armature.

In testimony whereof I ailix my signa; ture in presence of two witnesses.

CHRISTOPH WIRTH.

Witnesses Cmus'rorrr Beck, HEINRICH Knauss. 

